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Wyświetlanie 1-15 z 31
Tytuł:
Stability analysis and design of state estimated controller for delay fuzzy systems with parameter
Autorzy:
Hadj Taieb, Nizar
Hammami, Mohamed Ali
Delmotte, François
Powiązania:
https://bibliotekanauki.pl/articles/2175116.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
time-delay systems
observer
stabilization
Opis:
This paper deals with the problem of stabilization by an estimated state feedback for a family of nonlinear time-delay Takagi-Sugeno fuzzy parameterized systems. The delay is supposed to be constant where the parameter-dependent controls laws are used to compensate the nonlinearities which are formulated in terms of linear matrix inequalities (LMIs). Based on the Lyapunov-Krasovskii functionals, global exponential stability of the closed-loop systems is achieved. The controller and observer gains are able to be separately designed even in the presence of modeling uncertainty and state delay. Finally, a numerical example is given to show the applicability of the main result.
Źródło:
Archives of Control Sciences; 2022, 32, 4; 709--731
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On reconstruction of structure of a linear system with time delay
Autorzy:
Blizorukova, M.
Fedina, N.
Maksimov, V.
Powiązania:
https://bibliotekanauki.pl/articles/255631.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
time-delay systems
reconstruction of structure
Opis:
The problem of reconstruction of a structure of a linear system with delay is considered. A solution algorithm stable with respect to the informational noise and computational errors is specified. The algorithm is based on the method of auxiliary positionally controlled models.
Źródło:
Opuscula Mathematica; 2006, 26, 2; 257-267
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Less conservative results for the exponential stability of uncertain time-delay systems
Autorzy:
Sun, Y. J.
Powiązania:
https://bibliotekanauki.pl/articles/970980.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
delay-independent criterion
exponential stability
time-delay systems
Opis:
In this paper, global exponential stability of a class of uncertain systems with multiple time delays is investigated. Simple delay-independent criterion is derived to guarantee the global exponential stability of such systems. The main result is sharper than the recent result reported in the literature. Two numerical examples are also provided to illustrate the main result.
Źródło:
Control and Cybernetics; 2005, 34, 4; 1045-1055
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizing the Linear Quadratic Minimum-Time Problem for Discrete Distributed Systems
Autorzy:
Rachik, M.
Abdelhak, A.
Powiązania:
https://bibliotekanauki.pl/articles/907998.pdf
Data publikacji:
2002
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
informatyka
discrete distributed systems
time-delay systems
minimum time
optimal control
Opis:
With reference to the work of Verriest and Lewis (1991) on continuous finite-dimensional systems, the linear quadratic minimum-time problem is considered for discrete distributed systems and discrete distributed time delay systems. We treat the problem in two variants, with fixed and free end points. We consider a cost functional J which includes time, energy and precision terms, and then we investigate the optimal pair (N,u) which minimizes J.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2002, 12, 2; 153-160
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dead-time compensation in continuous-review perishable inventory systems with a remote supply source
Autorzy:
Ignaciuk, P.
Bartoszewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/229449.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inventory control
perishable inventory systems
time-delay systems
Smith predictor
Opis:
In this paper we address the problem of efficient control of continuous-review perishable inventory systems. In the considered systems the goods at a distribution center used to fulfill unknown, variable demand deteriorate at a constant rate, and are replenished with delay from a remote supply source. We develop a new supply policy which incorporates the Smith predictor for dead-time compensation. A number of properties of the designed policy is formulated, and strictly proved. In particular, we show that the policy guarantees that the assigned storage space at the distribution center is never exceeded which means that the cost of emergency storage is eliminated. Moreover, we show that with appropriately chosen controller parameters all of the demand imposed at the distribution center is realized from the readily available resources, thus ensuring the maximum service level.
Źródło:
Archives of Control Sciences; 2011, 21, 1; 61-84
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exponential stability of networked control systems with network-induced random delays
Autorzy:
Krokavec, D.
Filasova, A.
Powiązania:
https://bibliotekanauki.pl/articles/229822.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
networked systems
stability analysis
time-delay systems
linear matrix inequality
state feedback
Opis:
In this paper, the problem of exponential stability for the standard form of the state control, realized in a networked control system structure, is studied. To deal with the problem of stability analysis of the event-time-driven modes in the networked control systems the delayed-dependent exponential stability conditions are reformulated and proven. Based on the delay-time dependent Lyapunov-Krasovskii functional, exponential stability criteria are derived. These criteria are expressed as a set of linear matrix inequalities and their structure can be modified to use the bilinear inequality techniques.
Źródło:
Archives of Control Sciences; 2010, 20, 2; 165-186
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New observer-based control design for mismatched uncertain systems with time-delay
Autorzy:
Huynh, V. V.
Powiązania:
https://bibliotekanauki.pl/articles/229302.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
observer-based control
time-delay systems
linear matrix inequality (LMI)
mismatched uncertain systems
Opis:
In this paper, the state estimation problem for a class of mismatched uncertain time-delay systems is addressed. The estimation uses observer-based control techniques. The mismatched uncertain time-delay systems investigated in this study include mismatched parameter uncertainties in the state matrix and in the delayed state matrix. First, based on a new lemma with appropriately choosing Lyapunov functional, new results for stabilization of mismatched uncertain time-delay systems are provided on the basis of a linear matrix inequality (LMI) framework and the asymptotic convergence properties for the estimation error is ensured. Second, the control and observer gains are given from single LMI feasible solution which can overcome the drawback of the bilinear matrix inequalities approach often reported in the literature. Finally, a numerical example is used to demonstrate the efficacy of the proposed method.
Źródło:
Archives of Control Sciences; 2016, 26, 4; 597-610
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observer-based fault estimation for linear systems with distributed time delay
Autorzy:
Filasova, A.
Gontkovič, D.
Krokavec, D.
Powiązania:
https://bibliotekanauki.pl/articles/229173.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
adaptive fault estimation
distributed time delay systems
Lyapunov-Krasovskii functional
integral partitioning technique
time delay segmentation
linear matrix inequalities
Opis:
The paper is engaged with the framework of designing adaptive fault estimation for linear continuous-time systems with distributed time delay. The Lyapunov-Krasovskii functional principle is enforced by imposing the integral partitioning method and a new equivalent delaydependent design condition for observer-based assessment of faults are established in terms of linear matrix inequalities. Asymptotic stability conditions are derived and regarded with respect to the incidence of structured matrix variables in the linear matrix inequality formulation. Simulation results illustrate the design approach, and demonstrates power and performance of the actuator fault assessment.
Źródło:
Archives of Control Sciences; 2013, 23, 2; 169-186
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust Stabilization for Uncertain Time-Varying Delay Constrained Systems With Delay-Dependence
Autorzy:
Han, Q. L.
Mehdi, D.
Powiązania:
https://bibliotekanauki.pl/articles/908298.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
system opóźniania
stabilizacja
odporność na błędy
time-delay systems
stabilization
robustness
nonlinear parametric perturbations
saturating actuators
Opis:
This paper is concerned with the problem of robust stabilization of linear time-varying delay systems containing saturating actuators in the presence of nonlinear parametric perturbations. Based on Razumikhin's approach to the stability of functional differential equations, we determine upper bounds on the time-varying delay such that the uncertain system under consideration is robustly globally or locally asymptotically stabilizable via memoryless state feedback control laws. The obtained bounds are given in terms of solutions to Lyapunov equations. Two numerical examples are included to illustrate the results.
Źródło:
International Journal of Applied Mathematics and Computer Science; 1999, 9, 2; 293-311
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ABR traffic control over multi-source single-bottleneck ATM networks
Autorzy:
Bartoszewicz, A.
Molik, T.
Powiązania:
https://bibliotekanauki.pl/articles/907264.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
kontrola przeciążenia
sieć ATM
układ z opóźnieniem
predyktor Smitha
congestion control
ATM networks
time-delay systems
Smith principle
Opis:
The problem of flow control in fast, connection-oriented communication networks supporting the traffic generated by multiple sources is considered. A novel sampled time strategy governing the behaviour of the sources is proposed. The strategy combines the Smith principle with the conventional sampled time proportional controller. It guarantees an equal resource allocation between various users, full bottleneck link utilisation and no cell loss in the controlled network. Consequently, the need for cell retransmission is eliminated and a high throughput is ensured. Furthermore, transmission rates generated by the algorithm are limited. This property permits a direct implementation of the proposed strategy in the network environment. A simulation example confirms favourable performances of the proposed control scheme.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2004, 14, 1; 43-51
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observer-based fault-tolerant control against sensor failures for fuzzy systems with time delays
Autorzy:
Tong, S.
Yang, G.
Zhang, W.
Powiązania:
https://bibliotekanauki.pl/articles/930168.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sterowanie rozmyte
sterowanie z opóźnieniem
obserwator stanu
sterowanie tolerujące uszkodzenia
liniowa nierówność macierzowa
analiza stateczności
fuzzy time delay systems
sensor faults
state observer
fault tolerant control
linear matrix inequalities
stability analysis
Opis:
This paper addresses the problems of robust fault estimation and fault-tolerant control for Takagi-Sugeno (T-S) fuzzy systems with time delays and unknown sensor faults. A fuzzy augmented state and fault observer is designed to achieve the system state and sensor fault estimates simultaneously. Furthermore, based on the information of on-line fault estimates, an observer-based dynamic output feedback fault-tolerant controller is developed to compensate for the effect of faults by stabilizing the resulting closed-loop system. Sufficient conditions for the existence of both a state observer and a fault-tolerant controller are given in terms of linear matrix inequalities. A simulation example is given to illustrate the effectiveness of the proposed approach.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2011, 21, 4; 617-627
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algebraic observability of linear differential–algebraic systems with delay
Autorzy:
Zaczkiewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/205605.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
observability
differential-algebraic systems
time-delay
Opis:
The paper deals with the problem of algebraic observability for linear differential-algebraic systems with delay. For such systems, we present the observability matrix. By algebraic properties of the matrix we define some concepts of observability. We give necessary and sufficient conditions of these algebraic observabilities. We prove relations between these types of observabilities along with spectral observability. Practical verifiability of the conditions is demonstrated on several examples.
Źródło:
Control and Cybernetics; 2013, 42, 2; 491-502
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Delay Systems Synthesis using Multi-Layer Perceptron Network
Autorzy:
Plonis, D.
Katkevičius, A.
Urbanavičius, V.
Miniotas, D.
Serackis, A.
Gurskas, A.
Powiązania:
https://bibliotekanauki.pl/articles/1030785.pdf
Data publikacji:
2018-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
neural networks
delay systems
time consumption
iterative calculations
Opis:
The aim of this paper is to accelerate development and investigation of the delay systems. The computational time for investigation of particular design of delay system may take from several minutes up to several days. To achieve the required constructional parameters of the system, the iterative calculations usually should be repeated many times. In this paper, an artificial neural network is proposed to be used as the universal approximator for solving mathematical problems of delay system investigation instead of usual analytical and numerical techniques. The application of a multi-layer perceptron is proposed for approximation of solution space with discrete estimates, which were initially received by application of numerical techniques. Different structures of the multi-layer perceptron were tested for approximation. The difference between delay systems synthesis, which was estimated using numerical techniques and trained multi-layer perceptron did not exceed 5% for any of the six design parameter values. The execution time for estimating single delay system was reduced from 240 s to 20 ms. Such fast estimation of design parameters enables performing delay system analysis and design in real time, preserving time for structure visualization in 3D or virtual reality environment.
Źródło:
Acta Physica Polonica A; 2018, 133, 5; 1281-1286
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observability of small solutions of linear differential-algebraic systems with delays
Autorzy:
Zaczkiewicz, Z.
Marchenko, V.
Powiązania:
https://bibliotekanauki.pl/articles/969989.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
observability
small solutions
differential-algebraic systems
time-delay
Opis:
In this paper we investigate observability of small solutions of linear differential-algebraic systems with delays (DAD), i.e. solutions that vanish after some finite time. In particular, we prove existence of two kinds of small solutions of DAD systems. The main result are the rank type conditions for observability of three kinds of small solutions of linear differential-algebraic systems with delay.
Źródło:
Control and Cybernetics; 2006, 35, 4; 997-1013
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controllability, reachability and minimum energy control of fractional discrete-time linear systems with multiple delays in state
Autorzy:
Busłowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/200470.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
linear systems
fractional
discrete-time
time-delay
controllability
reachability
minimum energy control
Opis:
In the paper the problems of controllability, reachability and minimum energy control of a fractional discrete-time linear system with delays in state are addressed. A general form of solution of the state equation of the system is given and necessary and sufficient conditions for controllability, reachability and minimum energy control are established. The problems are considered for systems with unbounded and bounded inputs. The considerations are illustrated by numerical examples. Influence of a value of the fractional order on an optimal value of the performance index of the minimum energy control is examined on an example.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 2; 233-239
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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